Papers
Some preprints:
Some former preprints:

Finite group extensions of shifts of finite type:
Ktheory, Parry and Livsic
, 41 pages
(note addition of Appendix D, giving corrections)
with Scott Schmieding
(Ergodic Theory and Dynamical Systems)

Flow equivalence and
isotopy for subshifts
, 24 pages,
with Toke Carlsen and Soren Eilers
(Dynamical Systems)

The almost Borel structure of surface diffeomorphisms,
Markov shifts and their factors, 49 pages,
with
Jerome Buzzi
(Journal of the European Mathematical Society)

Strong shift equivalence and the generalized
spectral conjecture for nonnegative matrices,
with Scott Schmieding
Linear Algebra and Its Applications,
Hans Schneider volume,
paste in DOI number 10.1016/j.laa.2015.06.004 at
https://www.doi.org;
arxiv post
including Appendix A with corrections

Bowen's entropyconjugacy conjecture is true up
to finite index ,
with
Jerome Buzzi and
Kevin McGoff,
Proceedings AMS

Borel isomorphism of SPR Markov shifts
,
with
Jerome Buzzi and
Ricardo Gomez,
Colloq. Math.
 KIM MEMORIAL VOLUME.
The following three papers are author versions of
papers which appeared in the
Kim memorial volume,
Acta Applicandae Mathematicae 126 (2013),
for which I was the guest editor.
There is a
Mathnet link
and a
Springer link
for the volume.
For each of the three papers, the final publication is available at
http://link.springer.com .

Hidden Markov processes in the context of symbolic dynamics
with Karl Petersen
pdf
in "Entropy of Hiddden Markov Processes
and Connections to Dynamical Systems",
London Math. Society Lecture Note Series
(The preprint retains a useful table of contents which
format czars of the publisher removed from the paper.)

Multidimensional sofic shifts without separation and their factors
with
Michael Schraudner
and
Ronnie Pavlov
pdf
Transactions of the AMS.

Z^d shifts of finite type without equal entropy full
shift factors
with
Michael Schraudner
pdf
Journal of Difference Equations and Applications;
special issue on Combinatorial and Topological
Dynamics.

Open problems in symbolic dynamics
pdf
Contemporary Mathematics, volume dedicated to Michael Brin
(Some of the problems
have been
SOLVED.)

Z^d group shifts and Bernoulli factors
with
Michael Schraudner
pdf
Ergodic Theory and Dynamical Systems

Jointly periodic points in cellular automata: computer
explorations and conjectures,
including tables
of experimental results
(with thenundergraduate
Bryant Lee)

Good potentials for almost isomorphism of countable state Markov shifts
(with
Jerome Buzzi and
Ricardo Gomez )
(Stochastics and Dynamics, Vol. 7, No. 1 (2007), 115)
(S&D permits me to email individual copies of
the article, but not to post it online. The
final version differs significantly from
the preprint.)

Symbolic extension entropy: C^r examples,
products and flows
with
Tomasz Downarowicz
postscript ,
pdf
(Discrete and Continuous Dynamical Systems)

Almost isomorphism for countable state Markov shifts
(with
Jerome Buzzi and
Ricardo Gomez )
postscript ;
pdf
(J. reine angew. Math.)

Putnam's resolving maps in dimension zero
Erratum
postscript ;
pdf ;
dvi
(Ergodic Theory and Dynamical Systems)

Equivariant flow equivalence for shifts of finite type,
by matrix equivalence over group rings
(with
Michael C. Sullivan)
postscript ;
pdf ;
dvi
(Proceedings of the London Math. Soc.)

Some sofic shifts cannot commute with nonwandering
shifts of finite type
postscript ,
pdf ,
dvi
(Illinois Journal of Mathematics)

Positive Algebraic KTheory and Shifts of Finite Type
with
Jack Wagoner
postscript ,
pdf ,
dvi
(Katok Festschrift)

The entropy theory of symbolic extensions
with
Tomasz Downarowicz
postscript ,
pdf ,
dvi
(Inventiones Mathematicae)
[The copyright holder of this article is SpringerVerlag.]

Poset block equivalence of integral matrices
with
Danrun Huang
postscript ,
pdf ,
dvi ;
addendum
(Transactions AMS)

Small polynomial matrix presentations of nonnegative
matrices
with
Doug Lind
postscript ,
pdf
(Linear Algebra and its Applications)

Residual entropy, conditional entropy and subshift covers
with
Doris Fiebig and Ulf Fiebig
postscript ,
pdf ,
dvi
(Forum Math.)

Positive Ktheory and symbolic dynamics
postscript ,
pdf ,
dvi
(Dynamics and Randomness, editors A. Maass, S. Martinez
and J. San Martin, Kluwer, pp. 3152, 2002)

Flow equivalence of shifts of finite type via positive
factorizations
postscript ,
pdf ,
dvi
(Pacific J. Math.)

Expansive invertible onesided cellular automata
with
A. Maass
postscript,
pdf ,
dvi
Corrigendum
postscript,
pdf ,
dvi
(J. Math. Soc. of Japan)
[copyright owned by Mathematical Society of Japan]

Periodic points for Onto Cellular Automata
with
B. Kitchens
postscript,
pdf ,
dvi
(Indagationes Mathematicae)

Algebraic aspects of symbolic dynamics
postscript
(in "Topics in Symbolic Dynamics and Applications", Cambridge
Univ. Press)

A dimension group for local homeomorphisms
and endomorphisms of onesided shifts of finite type
with
D.Fiebig and U. Fiebig
postscript
(J. reine angew. Math.)

Bounded topological orbit equivalence and C* Algebras
with J. Tomiyama
postscript
(J. Math. Soc. of Japan)
[copyright owned by Mathematical Society of Japan]

Factoring Factor Maps
postscript
(J. London Math. Soc.)

Expansive subdynamics
with
D. Lind
pdf
(Transactions AMS)

Orbit equivalence, flow equivalence and ordered cohomology
with
D. Handelman
pdf
(Israel J. Math)

Symbolic dynamics and matrices
pdf
(from IMA Volumes Math and its Applications, Vol. 50, 1993)

Constraints on the degree of a sofic homomorphism and the induced multiplication of measures on unstable sets
pdf
(from Israel J. Math, Vol. 53, No.1, 1986)
 (by request)
The topological orbit equivalence chapter of my 1983
University of Washington PhD thesis, under advisor Douglas Lind
(with thanks to Steve Hurder's Acrobatics to right the tilts):
oe1c.pdf
oe2c.pdf
oe3c.pdf
oe4c.pdf
oe5c.pdf
oe6c.pdf
oe7c.pdf
(The other chapters of the thesis became my 1983 ETDS paper "Lower entropy factors of sofic systems", and part of the joint paper "A note on minimal covers for sofic systems", with Bruce Kitchens and Brian Marcus, Proc. AMS 1985.)